Abstract In this paper, we propose a new optical encryption approach based on quantum walks and double random phase encoding technique. Quantum walks have been proven as an excellent tool for designing modern cryptographic mechanisms due to its ability to resist probable attacks from both digital and quantum computers. In the proposed approach, we use the alternate quantum walks (AQW) at two encryption stages. First, inner encryption and encoding by double random phase encoding (DRPE) which executed using permutation followed by substitution. Furthermore, AQW is adapted to generate two random masks for the DRPE process. Simulation-based validation of our proposed technique, including correlation, histogram, sensitivity, key space as well as noise and data loss analysis provide impetus to consider its use in applications in modern optical cryptosystems.

中文翻译：

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基于量子游走的光学图像加密

摘要 在本文中，我们提出了一种基于量子游走和双随机相位编码技术的新型光学加密方法。量子行走已被证明是设计现代密码机制的绝佳工具，因为它能够抵御来自数字计算机和量子计算机的可能攻击。在所提出的方法中，我们在两个加密阶段使用交替量子游走 (AQW)。首先，通过双随机相位编码 (DRPE) 进行内部加密和编码，该编码使用置换和替换来执行。此外，AQW 适用于为 DRPE 过程生成两个随机掩码。我们提出的技术的基于模拟的验证，包括相关性、直方图、灵敏度、